DS1677

更新时间： 2024-11-15 22:50:47

品牌	Logo	应用领域
达拉斯 - DALLAS		控制器
页数	文件大小	规格书
17页	163K
描述
Portable System Controller

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中文翻译

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数据手册

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DS1677 数据手册

DS1677

Portable System Controller

www.dalsemi.com

FEATURES

ꢀ Provides Real Time Clock:

PIN ASSIGNMENT

Counts seconds, minutes, hours, date of

the month, month, day of the week, and

year with leap year compensation valid up

to 2100

Power control circuitry supports system

power on from day/time alarm

V_BAT

V_CCO

SCLK

I/O

V_CC

AIN0

ꢀ Microprocessor monitor:

CEI

CEO

AIN1

AIN2

RST

PFI

Halts microprocessor during power–fail

Automatically restarts microprocessor

after power failure

Monitors push–button for external

override

Halts and resets an out of control

microprocessor

INT

GND

PFO

20-Pin TSSOP

ꢀ =NV RAM control:

Automatic battery backup and write

protection to external SRAM

ꢀ 3–channel, 8–bit analog–to–digital converter

ꢀ Simple 3–wire interface

ꢀ +5.0V operation

ꢀ =1.25V threshold detector for power–fail

warning

ORDERING INFORMATION

DS1677E 20–Pin TSSOP

DESCRIPTION

The Portable System Controller is a circuit which incorporates many of the functions necessary for low

power portable products integrated into one chip. The DS1677 provides a Real Time Clock, NV RAM

controller, micro-processor monitor, power–fail warning, and a 3–channel, 8–bit analog–to–digital

converter. Communication with the DS1677 is established through a simple 3–wire interface.

The Real Time Clock (RTC) provides seconds, minutes, hours, day, date, month, and year information

with leap year compensation. The RTC also provides an alarm interrupt. This interrupt works when the

DS1677 is powered by the system power supply or when in battery backup operation so the alarm can be

used to wake up a system that is powered down.

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050200

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与DS1677相关器件

型号	品牌	获取价格	描述	数据表
DS1677_05	DALLAS	获取价格	Portable System Controller
DS1677-5	DALLAS	获取价格	Portable System Controller
DS1677D	NSC	获取价格	IC,BUS TRANSCEIVER,SINGLE,4-BIT,S-TTL,DIP,16PIN,CERAMIC
DS1677D/883	NSC	获取价格	IC,BUS TRANSCEIVER,SINGLE,4-BIT,S-TTL,DIP,16PIN,CERAMIC
DS1677D/883C	NSC	获取价格	IC,BUS TRANSCEIVER,SINGLE,4-BIT,S-TTL,DIP,16PIN,CERAMIC
DS1677E	DALLAS	获取价格	Portable System Controller
DS1677E+	DALLAS	获取价格	Portable System Controller
DS1677E-5	ETC	获取价格	Portable System Controller(275.85 k)
DS1678	NSC	获取价格	TRI-STATE TTL to MOS Multiplexers/Drivers
DS1678	MAXIM	获取价格	Real-Time Event Recorder